/* 版心 */
.wrapper {
    margin: 0 auto;
    width: 1240px;
  }
  
  /* 快捷导航 */
  .shortcut {
    height: 40px;
    background-color: #333;
  }
  .shortcut ul {
    display: flex;
    line-height: 40px;
    list-style-type: none;
  }
  
  .shortcut ul li a {
    padding: 0 15px;
    border-right: 1px solid gray;
    font-size: 14px;
    color: #b6b3b3;
    text-decoration: none;
  }
  
  .shortcut ul li:last-child a {
    border-right: 0;
  }

  .header{
    display: flex;
    margin-top: 15px;
    margin-bottom: 15px;
  }
  .logo{
    display: flex;
    margin-right: 40px;
    width: 200px;
    height: 88px;
  }
  .logo img{
    width: 55px;
    height: 55px;
  }
  .logo img:last-child{
    width: 150px;
    height: 55px;
  }
  .nav ul{
    display: flex;
    margin-left: -50px;
  }
  .nav ul li{
    list-style-type: none;
    margin-right: 20px;
    padding-bottom: 8px;
  }
  .nav ul li a{
    font-size: 18px;
    text-decoration: none;
    color: #333;
  }
.banner {
    position: relative;
    /* overflow: hidden; */
    /* width: 1240px; */
    height: 550px;
    display: flex;
    /* background-image: url(../images/banner.png);
    background-size:cover; */
    /* background-repeat: no-repeat; */
}
/* .banner .pic{
  display: flex;
} */
 .banner img {
width: 1030px;
 }
.subnav{
    /* width: 100px; */
    /* position: absolute;
    left: 0;
    top: 0; */
    background-color: rgba(0,0,0,0.42);
  }
  .subnav ul{
    width: 150px;
    margin: 0 10px;
  }
  .subnav li{
    display: flex;
    justify-content: space-between;
    margin-left: -30px;
    height: 40px;
    line-height: 60px;
    color: #fff;
    margin-bottom: 13px;
  }
  .subnav li a {
    text-decoration: none;
    margin-right: 3px;
    color: #fff;
  }
  /* .subnav li span {
    margin-left: 14px;
    margin-right: 4px;
  } */
/* 智能硬件 */
.title {
    display: flex;
    justify-content: space-between;
    padding-top: 20px;
    margin-bottom: -13px;
  }
.title p{
    font-size: 22px;
    color: gray;
  }
.title p:last-child{
    font-size: 18px;
    color: #333;
    padding-right: 40px;
}
  
  /* 智能硬件内容 */
  .content {
    display: flex;
    /* justify-content: space-between; */
  }
  .content .right ul{
    display: flex;
    flex-wrap: wrap;
    margin: 0px -40px;
  }
  .content .right ul li{
    list-style-type: none;
    width: 230px;
    background-color: #fff;
    margin-left: 16px;
    margin-bottom: 10px;
    text-align: center;
    position: relative;
  }
  .content .right ul li a{
    text-decoration: none;
  }
  .txt h4{
    color: #333;
  }
  .txt p{
    color: gray;
    font-size: 14px;
  }
  .txt p:last-child{
    color: orange;
      }
  .pic img{
        width: 150px;
        padding: 20px 0;
      }
  .small{
    color: #fff;
        background-color: orange;
        padding: 0 5px;
        position: absolute;
        top: 0;
        margin-left: -27px;
      }
      .big{
        color: #fff;
        background-color: red;
        padding: 0 5px;
        position: absolute;
        top: 0;
        margin-left: -27px;
      }
      .zn{
        padding-bottom: 50px;
      }
      .help {
        display: flex;
        padding: 60px 0;
        color: #969696;
      }
      .help .left {
        display: flex;
      }
      .help .left dl{
        /* margin-right: 75px; */
      }
      .help .left dt{
        margin-bottom: 30px;
        color: #333;
      }
      .help .left dd{
        margin-left: 0px;
        margin-bottom: 5px;
      }
      .help .left dd a{
        text-decoration: none;
        margin-bottom: 10px;
        color: #969696;
        margin-right: 80px;
      }
      .help .right{
        border-left: 1px solid #a6a6a6;
        padding-left: 50px;
        padding-top: 20px;
        text-align: center;
        color: #000;
      }
      .copyright{
        color: #969696;
        padding-top: 30px;
        padding-bottom: 70px;
        display: flex;
        align-items: center;
      }
      .copyright .left img{
        width: 60px;
        height: 60px;
      }
      .copyright .right{
        margin-left: 10px;
      }
      .copyright p{
        margin: 0;
      }
      .copyright p a{
        text-decoration: none;
        margin: 0 3px;
        color: #969696;
      }
      .bottom-img{
        position: absolute;
        bottom: 20px;
        left: 50%;
        transform: translate(-50%,0);
        width: 300px;
        height: 20px;
      }
    